Here you can access an electronic book of Musical Analyses of Queen Songs.
A big part of these song analyses were written and published between 2000 and 2008. Following a decade long pause many corrections and additions have been done, and the text was finally completed in book format.
This book is a scholar work, not a commercial one. It's not available in shops or webshops and it's free for everyone.
Dedicated Facebook-site: Queen Songwriting Analysis.